Clasp for bracelets, wrist watches, waist girdles, etc.



.Febgg 393g. E. o. scHLEslNGER CLASP FOR BRACELETS, WRIST WATCHES, WAISTCIRDLES, ETC

Filed April 25. 19,35

l l l l l 1 v Petented Feb. 2s, ,1939

PATENT oFFlcl:l

. ,Y 2,148,585 cLAsr Eon BRACELETS, wms'r WATCHES,

WAIST GIRDLES, ETC.

Ernst Oskar Schlesinger, Vienna, Austria Application April 25, 1935,Serial No. 18,123 In Austria. April 25, 1934 1 claim. (ci. :a4-qs) 'Ihisinvention relates to a clasp for bracelets, wrist watch bracelets, beltsand similar bands, and means for connecting a bracelet or band vwith awatch or the like. f

The known clasps are open to the objection that they can easily becomeundone by accident. In order to avoid this, constructions are known withseparate locking means. Such clasps areJ however, complicated anddelicate, difficult and inconvenient to ,open and close, whichis'particularly objectionablev as it is often required to remove and puton the article fitted therewith several times a day. Moreover, theseclasps are l5 not readily adjustable. so that the size of an articletted therewith oncel adjusted cannot be altered without diillculty.Further the connection of a watch or the like with such an Varticle isnot possible without separate attaching means.

The clasp according to the invention overi zo comes these objections, issuitable for bands of any material,A such as leather, metal or the like,and does, not require any separate locking means as it is self-locking'.v 'I An embodiment ol.' the invention is illustrated by way `oi examplein the accompanying draw- Fging, in which: Y

Fig. 1 is a vertical longitudinal section, and

Fig. 21s a plan view of the clasp partly broken I open. 3 Referring nowto the drawing, one end I2 o! a band whose ends are to be connected bythe clasp, is threaded through a slot in a transverse bar I4 at the rearend of a frame I, andpushed "as i'ar as a transverse bar I5 at thefrontend o! the frame, and a bracket 3 whose free end is shapedvas abuckle I0, is secured -on theother endlloftheband. A

A spring tongue 2 is mounted inthe side walls oi' the frame I near thefront end of thesame to 40 turn about a pivot I, and is equipped with ajaw 'I for gripping the end o! the band when it is in the frame I.Pivoted-at 0 near the rear end'oi thesframe Isa cover plate S'with a Jaw8 for admins the band. g

45 'i'o open thefclasp, the plate is swungupwards and the edge of litslocking member moves away from the slide I. lIhe'tonguel is then in turnswung upwards moving the edge of its locking memberl away from the slideI.

0 ne und, end I2 is now slipped between the vpiatelandllide-I and thetonsuel'andslide I. '.lhereafterthetrame Ilclampedontheother end I3 ofthe band isslipped on the tongue 2 whereupon this tongue 2 is depressedso that it bears against the top of the band end I Zand thus securelyholds the frame IIJ slipped on to the vtongue as already described. Atthe same time the locking member 4 of the tongue 2 presses the band endI2 tightly against the front end of the slide I. 'I'he cover plate 6 isthen swung down or depressed and covers the tongue2 so that it cannotrise and release the frame I Il, 1'

whereas the locking member 8 also presses the y band end I2 against theother end of the slide I thereby still more securely connecting theclasp and the band. l

To undo the clasp these operations are carried out in the reverse order,that isy the cover plate j 6 is rst raised thereby uncovering the tongue2 which can then be raised in turnso that the frame .I0 can be slippedoi the tongue 2 and the band end I2 pulled out from between the slide Iand the tongue 2V at one end /of the slide and the slide I and the coverplate 2 at the other l end of the slide. The cover plate 6l is of suchwidth that it completely covers the top of the frame so that the claspcannot be undone until this plate has been forcibly raised.

The jaws 4 and 8 are set at such an angle to the tongue 2 and coverplate 6 respectively that, when the tongue and plate are swung down intotheir closing position, these members have passed their dead centrepositions and, under the resiliency oi the band which they are clamping,press the Atongue and plate downwards towards the band, therebyovercoming all tendency oi the tongue and plate to automatically swingupwards away from the band. l u

I claim: f

-A clasp for connecting the two ends of a band, comprising a bracketsecured tonne end ofthe band, a buckle on the bracket, a frame arrangedto receive the other end `of the band, a spring tongue pivotally mountedin the trame and arranged to be threaded through the buckle. a

cover plate also pivotally mounted in the frame and arranged to fold thetongue down on the band in the frame, a jaw on the tongue anda law onthe cover-plate, both for gripping the band in the frame, the lengthVo1.' the tongue being so determined that in its folded-down positionits tree end bears against the jaw ot the-cover plate. n

